20320825

素因数分解:

$5^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{769}}^1$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 29025920

約数和(自身を除く): 8705095

約数列:

[1, 5, 7, 25, 35, 151, 175, 755, 769, 1057, 3775, 3845, 5285, 5383, 19225, 26425, 26915, 116119, 134575, 580595, 812833, 2902975, 4064165, 20320825]

約数ペア:

[(1, 20320825), (5, 4064165), (7, 2902975), (25, 812833), (35, 580595), (151, 134575), (175, 116119), (755, 26915), (769, 26425), (1057, 19225), (3775, 5383), (3845, 5285)]